ok, I'm getting ready to write a new DW novellette - my Rose's Universe take. So, I've got to do some world building, and get all the facts I know about that universe. Here's what I've started to cobble together. Feel free to quibble or add to this in comments.
1)Family: Pete, Jackie, little Tony; at the end of Doomsday, Rose seems to live with her Mum and Dad.
2) Rose works at Torchwood. I'm going to posit that since the gap closed at Dårlig Ulv Stranden, that the Rift in Rose's Universe isn't in Cardiff. It's in Norway. In our Norway's county of
Farsund (and, an interjection here: I picked this location 'cause I saw some pretty pictures of the beach - then I found out that the name means "Traveling Sound, or Traveling Channel"; coincedence... Ha!)
Here are some pics. Farsund is very small -- population just under 10K. Cosy.
3) Zepplins!
4) Politics and stuff: Britain has a president. In Rise of the Cybermen the unnamed President was killed at Jackie Tyler's birthday party. By Doomsday, alternate-Harriet Jones is the President.
5) The New Torchwood: Pete worked against Lumic as "Gemini." In Doomsday, Jake said - "Parallel Earth - parallel Torchwood. Except we found out what the institute was doing and the People's Republic took control." The "we" is Jake, Mickey's group, The Preachers, perhaps along with Pete Tyler. By Doomsday, the three are definately working as a Torchwood-like team.
6) Time: flows differently -- not sure how long Jackie and Rose would've been away. Weeks, months?
Ok, that's all I can glean from the transcripts. There've been a lot of fics out there that've ran with this in the direction of Pete Tyler running a very posh London Torchwood. I don't think that's the direction I wanna go.
One last thing: I keep hearing(*) Rose Tyler exclaim, "Well fuck me sideways and call me Captain Jack" -- I have no idea where it comes from, but there she is, clear as a bell.
* -- sorry, that is, keep hearing her in my head; weird, but there ya go.